Rolling bearing assembly device for steering column

摘要

Rolling bearing assembly device comprising an outer race, an inner race, a row of rolling elements which is arranged between the outer and inner races, a sleeve mounted in the bore of the inner race, and an elastic preload element capable of transmitting an axial preload to the inner race, the elastic preload element being mounted in direct contact with the inner race and being able to be in contact with an annular axial centring portion of the sleeve. A radial bearing flange of the sleeve extends radially from the axial centring portion towards the outside of the device and bears axially over its entire periphery against the elastic preload element.;The rolling bearing assembly device comprises an axial retention means bearing axially over its entire periphery against the radial bearing flange of the sleeve.

主权项

1. A rolling bearing assembly device comprising:
an outer race, an inner race, a row of rolling elements arranged between the outer and inner races, a sleeve mounted in the bore of the inner race, the sleeve comprising a hook extending radially outward therefrom, the sleeve being configured to provide an axial gap between the hook and the inner race, a cage configured to secure the row of rolling elements, the cage comprising a protrusion extending radially inward such that the protrusion and the hook of the sleeve are configured to axially collaborate to axially position the row of rolling elements relative to the hook and prevent the row of rolling elements from moving axially toward the hook, and an elastic preload element capable of transmitting an axial preload to the inner race, the elastic preload element being mounted in direct contact with the inner race and being able to be in contact with an annular axial centring portion of the sleeve and a radial bearing flange of the sleeve extending radially from the axial centring portion towards the outside of the device and bearing axially over its entire periphery against the elastic preload element, wherein an axial retainer bears axially over its entire periphery against the radial bearing flange of the sleeve.